Hematite
Iron(III) oxide (Fe2O3)
Category
Browse sedimentary (primary) with artificial modification specimens identified by the Rock Identifier community.
Hematite
Iron(III) oxide (Fe2O3)
Milky Quartz
Silicon Dioxide (SiO2)
Artificial Rock Face (Faux Rock)
Glass Fiber Reinforced Concrete (GFRC)
Honey Calcite
Calcium Carbonate (CaCO3)
Quartz (Milky or Cloudy Quartz)
Silicon Dioxide (SiO2)
Bauxite
Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))
Banded Iron Formation (BIF) / Jasper-Magnetite
Banded Iron Formation (majorly Fe2O3/Fe3O4 + SiO2)
Banded Iron Formation (Jaspillite)
Banded Iron Formation (BIF) / Jaspillite
Kaolinite (Chalky Clay)
Kaolinite (Al2Si2O5(OH)4)
Hematite Mineral Ore
Iron(III) oxide (Fe2O3)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Limonite (Ironstone)
Limonite (FeO(OH)·nH2O)
Hematite
Iron(III) oxide (Fe2O3)
Banded Iron Formation (Hematite/Magnetite-rich)
Banded Iron Formation (BIF)
Hematite
Iron(III) oxide (Fe2O3)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite (SiO2 based with mineral cement)
Black Chert (Flint)
Silicon Dioxide (SiO2)
Specular Hematite Geode/Nodule
Specularite (Polycrystalline Hematite), Fe2O3
Quartz Geode
Crystalline Quartz (Silicon Dioxide, SiO2)
Quartz Geode in Chert/Limestone Matrix
Silicon Dioxide (SiO2) within Sedimentary Host Rock
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
Chert (specifically Jasper/Flint)
Chert (SiO2)
Honey Calcite
Calcite (Calcium Carbonate, CaCO3)
Hematite
Iron(III) oxide (Fe2O3)
Galena
Lead(II) sulfide (PbS)
Celestite (Celestine)
Strontium sulfate (SrSO4)
Blue Celestite
Celestine (Strontium Sulfate, SrSO4)
Hematite
Iron(III) oxide (Fe2O3)
Limonite (Iron Ore)
Goethite and related iron hydroxides (FeO(OH)·nH2O)
Gypsum (Wallboard/Drywall)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Chert (Light Grey / Flint variant)
Cryptocrystalline Quartz (SiO2)
Hematite (Iron Ore)
Hematite (Fe2O3)
Milky Quartz
Silicon Dioxide (SiO2)
Limestone
Sedimentary rock composed primarily of Calcium Carbonate (CaCO3)
Sand (Construction Grade)
Unconsolidated siliciclastic sediment (primarily SiO2)
Jasper (specifically Yellow or Picture Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Fossiliferous Limestone
Calcite-rich Sedimentary Rock (CaCO3)
Ferruginous Sandstone (Ironstone)
Arenite with Iron-Oxide Cement (FeO(OH)·nH2O / Fe2O3)
Bumblebee Jasper
Fossiliferous Calcite containing Orpiment and Realgar
Chert (includes Flint & Jasper)
Chert (Siliceous sedimentary rock, chemical formula SiO2)
Banded Iron Formation (Chert/Hematite)
Banded Iron Formation (BIF)